Old thread pretty much identical to what I'm asking: https://www.reddit.com/r/AskHistorians/comments/26vmhz/good_online_courseslectures_in_history/

I've used OYC for a while but unfortunately it's pretty skeletal (jumping from greece to early middle ages to early modern england is not fun) and I'm looking to fill in those gaps. Are there any other high quality collections of history lectures?

At the moment I'm interested in Persia and the late middle ages (1000-renaissance)